ArticleACS nano2024
Circularly Polarized Luminescence Without External Magnetic Fields from Individual CsPbBr
Article in ACS nano, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Controlling the Surface Morphology of Strongly Confined CsPbBr3 Perovskite Quantum Dots.Nano letters · 2026Article
- Synthesis, Properties, and Applications of Morphology-Controlled Perovskite Quantum Dots.ACS applied optical materials · 2026Review
- Purcell-Enhanced Single-Photon Generation from CsPbBrACS nano · 2026Article
- Atomic Cartography of High-Entropy CsSmall methods · 2025Article
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Authors and funding
11 authors.
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Abstract
Lead halide perovskite quantum dots (QDs), the latest generation of the colloidal QD family, exhibit outstanding optical properties, which are now exploited as both classical and quantum light sources. Most of their rather exceptional properties are related to the peculiar exciton fine-structure of band-edge states, which can support unique bright triplet excitons. The degeneracy of the bright triplet excitons is lifted with energetic splitting in the order of millielectronvolts, which can be resolved by the photoluminescence (PL) measurements of single QDs at cryogenic temperatures. Each bright exciton fine-structure-state (FSS) exhibits a dominantly linear polarization, in line with several theoretical models based on the sole crystal field, exchange interaction, and shape anisotropy. Here, we show that in addition to a high degree of linear polarization, the individual exciton FSS can exhibit a non-negligible degree of circular polarization even without external magnetic fields by investigating the four Stokes parameters of the exciton fine-structure in individual CsPbBr
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